Tag: mac

Categories
Apple

Apple USB to Serial

Several weeks ago I had to replace my USB-to-Serial adaptor.  After much research, Facebook posting/discussion I bought a Ugreen USB adaptor from Amazon.  After a few times, I started having issues.  I figured, like most network engineers it was software.  Long story short it was a hardware failure and a replacement one fixed it.

However, in my searching I came across a little gem simply called Serial from Decisive tactics.   What sold me on it was the ability to do profiles.  Many times I am connecting to Cisco and the old way is the terminal emulator defaults to something that is not 9600. So I have to go into preferences, change it, apply a few times and I am good. Lots of wasted clicks.  With Serial I can select my profile and off I go.

Categories
Networking

Mac GeekLet for Network Info

As a network person running a Mac I find it hand to know what IP my various connections have, in addition to some other info.  In order to do this, I use a program called Geektool . Once you have GeekTool up and going you can add the following code into a new Geeklet.

!/bin/bash
varSSID1=`system_profiler SPAirPortDataType | grep -A 2 -e "Current Network Information:" | tr '\n' ' ' | tr ':' ' ' | awk '{print $4}'`
varCHAN1=`system_profiler SPAirPortDataType | grep -e "Channel: " | awk '{print $2}'`
varEXTERNAL1=`curl --connect-timeout 5 -s http://checkip.dyndns.org/ | grep "Current IP Address" | awk '{print $6}' | cut -f 1 -d "<"`
varEXTERNALv6=`curl --connect-timeout 5 -s http://checkipv6.dyndns.org/ | grep "Current IP Address" | awk '{print $6}' | cut -f 1 -d "<"`
varWIRED1=`ifconfig en0 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIREDv6=`ifconfig en0 | grep "inet6 " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIRELESS1=`ifconfig en1 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`
varWIRELESSv6=`ifconfig en1 | grep "inet6 " | grep -v 127.0.0.1 | awk '{print $2}'`
varSSL1=`ifconfig jnc0 | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'`

if [ “$varEXTERNAL1” != “” ]
then
echo “External : $varEXTERNAL1”
else
echo “External : INACTIVE”
fi

if [ “$varEXTERNALv6” != “” ]
then
echo “External : $varEXTERNALv6”
else
echo “External : INACTIVE”
fi

if [ “$varWIRED1” != “” ]
then
echo “Wired : $varWIRED1”
else
echo “Wired : INACTIVE”
fi

if [ “$varWIREDv6” != “” ]
then
echo “WiredV6 : $varWIREDv6”
else
echo “WiredV6 : INACTIVE”
fi

if [ “$varWIRELESS1” != “” ]
then
echo “AirPort : $varWIRELESS1 SSID: $varSSID1”
else
echo “Airport : INACTIVE”
fi

if [ “$varWIRELESSv6” != “” ]
then
echo “AirPortV6 : $varWIRELESSv6”
else
echo “AirportV6 : INACTIVE”
fi

geektool

As you can see in the above screenshot it displays IP addresses (both IPv4 IPv6),external IP, and the Wireless SSID.